Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (910,673 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Khalid Bani Melhem
Water & wastewater treatment and reuse
Membrane separation technology
Water Desalination
Metrics
H-Index
i10 Index
Citation
23
33
2,740
* Rankings
Ranking Based On Selection: 2
Nezar Hammouri
Climate change
GIS
Remote sensing
Water resources
Metrics
H-Index
i10 Index
Citation
17
20
1,210
* Rankings
Ranking Based On Selection: 4
Ahmed N Bdour
Desalination
Renewable energy
Water and wastewater treatment
Sediment transport
Metrics
H-Index
i10 Index
Citation
13
16
1,181
Fakher Aukour
environmental quality
range management and RL rehabilitation
waste management
soil contamination
Metrics
H-Index
i10 Index
Citation
7
6
242
Ahmed Al Hammouri
plant & environmental sciences
plant protection (soilborne pathogens
biofumigation)
plant production
Metrics
H-Index
i10 Index
Citation
4
2
71
Rankings
Ranking Based On Selection: 1
Khalid Bani Melhem
Metrics
H-Index
i10 Index
Citation Counts
23
33
2,740
Water & wastewater treatment and reuse
Membrane separation technology
Water Desalination
Rankings
Ranking Based On Selection: 2
Nezar Hammouri
Metrics
H-Index
i10 Index
Citation Counts
17
20
1,210
Rankings
Ranking Based On Selection: 3
Mahmoud Abuallaban
Metrics
H-Index
i10 Index
Citation Counts
17
24
1,279
Rankings
Ranking Based On Selection: 4
Ahmed N Bdour
Metrics
H-Index
i10 Index
Citation Counts
13
16
1,181
Desalination
Renewable energy
Water and wastewater treatment
Sediment transport
Rankings
Ranking Based On Selection: 5
Fakher Aukour
Metrics
H-Index
i10 Index
Citation Counts
7
6
242
environmental quality
range management and RL rehabilitation
waste management
soil contamination
Rankings
Ranking Based On Selection: 6
Ahmed Al Hammouri
Metrics
H-Index
i10 Index
Citation Counts
4
2
71
plant & environmental sciences
plant protection (soilborne pathogens
biofumigation)
plant production